|
|
|
|
/*
|
|
|
|
|
* RIFF common functions and data
|
|
|
|
|
* copyright (c) 2000 Fabrice Bellard
|
|
|
|
|
*
|
|
|
|
|
* This file is part of Libav.
|
|
|
|
|
*
|
|
|
|
|
* Libav is free software; you can redistribute it and/or
|
|
|
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
|
|
|
* License as published by the Free Software Foundation; either
|
|
|
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* Libav is distributed in the hope that it will be useful,
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
|
* Lesser General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
|
|
|
* License along with Libav; if not, write to the Free Software
|
|
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @file
|
|
|
|
|
* internal header for RIFF based (de)muxers
|
|
|
|
|
* do NOT include this in end user applications
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef AVFORMAT_RIFF_H
|
|
|
|
|
#define AVFORMAT_RIFF_H
|
|
|
|
|
|
|
|
|
|
#include "libavcodec/avcodec.h"
|
|
|
|
|
#include "avio.h"
|
|
|
|
|
#include "internal.h"
|
|
|
|
|
#include "metadata.h"
|
|
|
|
|
|
|
|
|
|
extern const AVMetadataConv ff_riff_info_conv[];
|
|
|
|
|
extern const char ff_riff_tags[][5];
|
|
|
|
|
|
|
|
|
|
int64_t ff_start_tag(AVIOContext *pb, const char *tag);
|
|
|
|
|
void ff_end_tag(AVIOContext *pb, int64_t start);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Read BITMAPINFOHEADER structure and set AVStream codec width, height and
|
|
|
|
|
* bits_per_encoded_sample fields. Does not read extradata.
|
|
|
|
|
* @return codec tag
|
|
|
|
|
*/
|
|
|
|
|
int ff_get_bmp_header(AVIOContext *pb, AVStream *st);
|
|
|
|
|
|
|
|
|
|
void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
|
|
|
|
|
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc);
|
|
|
|
|
enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps);
|
|
|
|
|
int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);
|
|
|
|
|
|
|
|
|
|
extern const AVCodecTag ff_codec_bmp_tags[];
|
|
|
|
|
extern const AVCodecTag ff_codec_wav_tags[];
|
|
|
|
|
|
|
|
|
|
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
|
|
|
|
|
|
|
|
|
|
int ff_read_riff_info(AVFormatContext *s, int64_t size);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Write all recognized RIFF tags from s->metadata
|
|
|
|
|
*/
|
|
|
|
|
void ff_riff_write_info(AVFormatContext *s);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Write a single RIFF info tag
|
|
|
|
|
*/
|
|
|
|
|
void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str);
|
|
|
|
|
|
|
|
|
|
#endif /* AVFORMAT_RIFF_H */
|
